Merge "Add a return value to BlobCache::set" into tm-dev am: 8a5d80d7d1

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/native/+/18145090

Change-Id: Iade4812db1453cac72775d1801a094c90cc02969
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>